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//
//  ========================================================================
//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//      http://www.eclipse.org/legal/epl-v10.html
//
//      The Apache License v2.0 is available at
//      http://www.opensource.org/licenses/apache2.0.php
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//

package org.eclipse.jetty.server;

import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


/* ------------------------------------------------------------ */
/** The Authentication state of a request.
 * 

* The Authentication state can be one of several sub-types that * reflects where the request is in the many different authentication * cycles. Authentication might not yet be checked or it might be checked * and failed, checked and deferred or succeeded. * */ public interface Authentication { /* ------------------------------------------------------------ */ /** A successful Authentication with User information. */ public interface User extends Authentication { String getAuthMethod(); UserIdentity getUserIdentity(); boolean isUserInRole(UserIdentity.Scope scope,String role); void logout(); } /* ------------------------------------------------------------ */ /** A wrapped authentication with methods provide the * wrapped request/response for use by the application */ public interface Wrapped extends Authentication { HttpServletRequest getHttpServletRequest(); HttpServletResponse getHttpServletResponse(); } /* ------------------------------------------------------------ */ /** A deferred authentication with methods to progress * the authentication process. */ public interface Deferred extends Authentication { /* ------------------------------------------------------------ */ /** Authenticate if possible without sending a challenge. * This is used to check credentials that have been sent for * non-manditory authentication. * @return The new Authentication state. */ Authentication authenticate(ServletRequest request); /* ------------------------------------------------------------ */ /** Authenticate and possibly send a challenge. * This is used to initiate authentication for previously * non-manditory authentication. * @return The new Authentication state. */ Authentication authenticate(ServletRequest request,ServletResponse response); /* ------------------------------------------------------------ */ /** Login with the LOGIN authenticator * @param username * @param password * @return The new Authentication state */ Authentication login(String username,Object password,ServletRequest request); } /* ------------------------------------------------------------ */ /** Authentication Response sent state. * Responses are sent by authenticators either to issue an * authentication challenge or on successful authentication in * order to redirect the user to the original URL. */ public interface ResponseSent extends Authentication { } /* ------------------------------------------------------------ */ /** An Authentication Challenge has been sent. */ public interface Challenge extends ResponseSent { } /* ------------------------------------------------------------ */ /** An Authentication Failure has been sent. */ public interface Failure extends ResponseSent { } public interface SendSuccess extends ResponseSent { } /* ------------------------------------------------------------ */ /** Unauthenticated state. *

* This convenience instance is for non mandatory authentication where credentials * have been presented and checked, but failed authentication. */ public final static Authentication UNAUTHENTICATED = new Authentication(){@Override public String toString(){return "UNAUTHENTICATED";}}; /* ------------------------------------------------------------ */ /** Authentication not checked *

* This convenience instance us for non mandatory authentication when no * credentials are present to be checked. */ public final static Authentication NOT_CHECKED = new Authentication(){@Override public String toString(){return "NOT CHECKED";}}; /* ------------------------------------------------------------ */ /** Authentication challenge sent. *

* This convenience instance is for when an authentication challenge has been sent. */ public final static Authentication SEND_CONTINUE = new Authentication.Challenge(){@Override public String toString(){return "CHALLENGE";}}; /* ------------------------------------------------------------ */ /** Authentication failure sent. *

* This convenience instance is for when an authentication failure has been sent. */ public final static Authentication SEND_FAILURE = new Authentication.Failure(){@Override public String toString(){return "FAILURE";}}; public final static Authentication SEND_SUCCESS = new SendSuccess(){@Override public String toString(){return "SEND_SUCCESS";}}; }





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